{"coeffs": [-3.5162357308783132e-09, 0.03857749505338171, 1.2341155561962736, 0.0684160839618038], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [4.187790191891451e-08, 227.4294513685527, 401.82273400824107, 0.01945760763021546], "covariance": [[1.7537586691302238e-15, -3.791824565369154e-06, -6.700359161497021e-06, -4.1436055294960206e-10], [-3.7918245681486645e-06, 51724.15534980087, 91386.32310460712, 4.232006476353636], [-6.700359166286784e-06, 91386.32310459849, 161461.50956585765, 7.477425192113203], [-4.1436055310286855e-10, 4.2320064754534945, 7.477425190523515, 0.0003785984946914189]]}